Scelta multipla
Which of the following pathogens undergoes antigenic variation to avoid immune defenses?
598
views
21. The Immune System
Introduction to Adaptive Immunity
Scelta multipla
Why would a body cell that is not a phagocyte need to present antigens?
A
To produce antibodies against the antigen
B
To increase the production of red blood cells
C
To activate T cells and initiate an immune response
D
To directly destroy pathogens
Guida verificata passo dopo passo1
Understand the role of antigen presentation: Antigen presentation is a crucial part of the immune response where cells display antigens on their surface to communicate with immune cells.
Identify the types of cells involved: While phagocytes are known for engulfing pathogens and presenting antigens, other body cells can also present antigens, particularly when they are infected or abnormal.
Explore the mechanism of antigen presentation: Non-phagocytic cells, such as infected body cells, use Major Histocompatibility Complex (MHC) molecules to present antigens on their surface.
Recognize the purpose of antigen presentation by non-phagocytic cells: The primary purpose is to activate T cells, specifically cytotoxic T cells, which are essential for identifying and destroying infected or abnormal cells.
Connect antigen presentation to the immune response: By presenting antigens, non-phagocytic cells help initiate a targeted immune response, ensuring that T cells can recognize and respond to specific threats effectively.
Video correlati
Pratica correlata
